Last name ทิชัย (Tichai 
, ทิชัย ) , in all the world, is a rare family name. The family name ทิชัย is habitual in Czechia, where it is a rare surname, Germany, and Thailand. Much less frequently, ทิชัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Tichai | China, Czechia, Germany, Thailand, India |
| ทิชัย | Thailand |